Behavior and general characteristics

Humboldt squid are carnivorous marine invertebrates that move in shoal of up to 1,200 individuals. They swim at speeds of up to 24 kilometres per hour () propelled by water ejected through a hyponome (siphon) and by two triangular fins. Their tentacles bear suckers lined with sharp teeth with which they grasp prey and drag it towards a large, sharp beak.

Although Humboldt squid have a reputation of being aggressive, there is some disagreement on this subject. Some scientists claim the only reports of aggression towards humans have occurred when reflective diving gear or flashing lights have been...Read More